Navigate to the folder containing the items you wish to re-order (this may be the site home). Select the “Contents” tab from the green shaded actions.

Position your cursor pointer over the listing for the item you wish to move. The pointer should change to your computer's "move" icon. Now, hold down your mouse button and drag the item to the desired position. Release the mouse button.

If your browser doesn't support this function, look for the up and down position buttons on the right of each item. Use these to move your item around. Yes, we know it can be tedious if the list is long.